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I'd like to control some of my home's electricity sockets via my PC. I was thinking about WiFi sockets (couldn't find any product for that), or sockets which are controlled by the electric network (like x10 - though I need for 220v). Can you think of something to help me?

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X10 is available for 220V mains, for example. x10europe.com – Niall C. Apr 27 '11 at 14:31
Thanks, that was very helpful! – shlomiw Apr 27 '11 at 16:04
up vote 13 down vote accepted

X10 works, but is a pretty bad protocol. It is very slow and limited, and is susceptible to noise and interference (often mistaking noise for actual commands, causing lights to turn on/off on their own).

Z-Wave provides similar capabilites, but is much newer and uses RF signals to communicate. There are a huge variety of products and lots of stuff for UK (some stores I found on Google -- no endorsement: Z-wave products UK, UK Automation)

UPB is another technology, though it doesn't appear to be available in Europe.

Insteon is a fairly popular one in North America, and although they've been talking for a few years about introducing it to Europe, it doesn't appear they have yet.

All of these (including X10) have ways to communicate with them from a PC, and from there you're limited only by your imagination and programming abilities. I have an Insteon setup in my basement home theater, which is controlled by a PC (and via the PC, can also be controlled from a simple iPod interface, my Aastra VoIP phones, or infrared remotes). Next house I will probably do UPB though (specifically, Simply Automated products), simply because the switches are a lot more powerful, and their software is miles ahead of Insteon, albeit also harder to use**.

** Insteon is dumbed-down a bit to make it easier, but of course sacrifices some flexibility by doing so. My biggest gripe is you can't set up a scene that turns some things on, and others off (such as my "movie" scene does); the best workaround is to dim to 1%, which keeps my halogen pot lights still very dimly lit, and wasting power.

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I would vote +1 for you but I don't have enough reputation. Great detailed answer, I'll check out all the technologies you mentioned. Thank you very much! – shlomiw Apr 28 '11 at 8:00
Got my reputation by now and voted for you + marked as answer ;-) – shlomiw Apr 30 '11 at 8:02

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